Reorganizing a 20th century cabinet of curiosities into a museum for the 21st century

This paper describes the life of a university museum that was born in the 1980s and transformed in the 21st century. Over a period of 25 years Professor Reverte collected more than 3700 objects and set up an authentic cabinet of curiosities dedicated to the fields of anthropology and forensic science. Despite the diversity of its contents, the museum had a recognized scientific interest. It has now undergone changes in order to meet the requirements of new academic demands and public accessibility, but without losing reference to its origins

História da Conservação Preventiva*. Parte II

La segunda parte de la historia de la conservación preventiva comienza en 1990; esta etapa es mucho más corta que la primera,pero más prolífica en materiales, proyectos y publicaciones. Vamos a ver cómo desde sus inicios, la conservación preventiva ha ido cobrando protagonismo en todos los ámbitos relacionados con la preservación y uso del patrimonio. En este artículo vamos a destacar los hitos fundamentales que han conseguido afianzar esta disciplina en los últimos 25 años y valorar- su desarrollo en España.The second part of the history of Preventive Conservation starts in 1990. This period is shorter but more prolific in materials, projects and publications. From the beginning, preventive conservation has been gaining relevance in all areas related to preservation and use of cultural heritage. In this article we will underline the most important events occurred in the last 25 years, with special interest in the development of the discipline in Spain.A segunda parte da história da conservação preventiva começa em 1990. Esta fase é muito mais curtado que a primeira, mas é mais prolífica em materiais, projetos e publicações. Veremos como, desde a sua criação, a conservação preventiva ganhou protagonismo em todas as áreas relacionadas com a preservação ea utilização do património. Neste artigo, vamos destacar os marcos fundamentais que conseguiram reforçar esta disciplinanos últimos 25 anos, salientando o seu desenvolvimento em Espanha.Depto. de Pintura y Conservación-RestauraciónFac. de Bellas ArtesTRUEpu

Museos universitarios en Europa. Retos e iniciativas

The university and the museum are the best examples of institutional globalisation in Europe. Many of the university collections, in addition to their intrinsic value and interest, have a close relationship with the places where they are located. Their significance is greatly enhanced by placing them in the context of what we know as the European dimension. The future of European museums and university collections is undergoing an intense debate, universities are facing a necessary process of change and heritage can play a key role in this. Reorganization projects and new ways of interpretation, participation and collaboration are proposed to increase their potential and interest for a wide range of users.La universidad y el museo son los mejores ejemplos de globalización que ofrece Europa a nivel institucional. Muchas de las colecciones de las universidades, además de su valor e interés intrínseco, tienen una relación estrecha con los lugares donde se asientan; su significación aumenta considerablemente al situarlo en el contexto de lo que conocemos como la dimensión europea. El futuro de los museos y colecciones universitarias europeas se encuentra inmerso en un intenso debate, las universidades se enfrentan a un proceso de cambio necesario y, en éste, el patrimonio puede jugar un papel fundamental. Se plantean proyectos de reorganización y nuevas fórmulas de interpretación, participación y colaboración con el objetivo de incrementar su potencial e interés para un amplio abanico de usuarios

Calculated energy loss of swift He, Li, B, and N ions in SiO2, Al2O3, and ZrO2

We have calculated the electronic stopping power and the energy-loss straggling parameter of swift He, Li, B, and N ions moving through several oxides, namely SiO2, Al2O3, and ZrO2. The evaluation of these stopping magnitudes was done in the framework of the dielectric formalism. The target properties are described by means of a combination of Mermin-type energy-loss functions that characterize the response of valence-band electrons, together with generalized oscillator strengths to take into account the ionization of inner-shell electrons. We have considered the different charge states that the projectile can have, as a result of electron capture and loss processes, during its motion through the target. The electron density for each charge state was described using the Brandt-Kitagawa statistical model and, for He and Li ions, also hydrogenic orbitals. This procedure provides a realistic representation of both the excitation properties of the target electrons and the projectile charge density, yielding stopping powers that compare reasonably well with available experimental data above a few tens of keV/amu.This work was supported by the Spanish Comisión Interministerial de Ciencia y Tecnología (BFM2003-04457-C02-01 and BFM2003-04457-C02-02). S.H.A. thanks the Fundación Cajamurcia for financial support and J.M.F.V. expresses his gratitute for a travel grant from the Universitat d’Alacant

The Kernel Estimation in Biosystems Engineering.

In many fields of biosystems engineering, it is common to find works in which statistical information is analysed that violates the basic hypotheses necessary for the conventional forecasting methods. For those situations, it is necessary to find alternative methods that allow the statistical analysis considering those infringements. Non-parametric function estimation includes methods that fit a target function locally, using data from a small neighbourhood of the point. Weak assumptions, such as continuity and differentiability of the target function, are rather used than “a priori” assumption of the global target function shape (e.g., linear or quadratic). In this paper a few basic rules of decision are enunciated, for the application of the non-parametric estimation method. These statistical rules set up the first step to build an interface usermethod for the consistent application of kernel estimation for not expert users. To reach this aim, univariate and multivariate estimation methods and density function were analysed, as well as regression estimators. In some cases the models to be applied in different situations, based on simulations, were defined. Different biosystems engineering applications of the kernel estimation are also analysed in this review

Smart Learning Environments y ergonomía: una aproximación al estado de la cuestión

Educational technology evolves constantly, in line with the innovative technologies we implement, but always catering for the improvement of teaching and learning. For this, Smart Learning Environments (SLE) emerge as an optimal alternative to traditional teaching as, through ergonomics, an inclusive outlook which is bound to enhance the educational experience of every student is provided. The method utilized is based on a systematic review of the existing literature which has allowed us to analyze in depth a final sample of 19 documents after an initial review of 633, being these all the works published between 2013 and 2019. Therefore, the principal objective of the present work is carrying out an analysis of the state of the art in relation to ergonomics, inclusiveness and the SLE. The analysis of results is performed utilizing a semantic network, generated through atlas.ti. v.8, by means of which 3 categories, 10 codes and 33 quotes are extracted. Namely, the results reveal the emerging nature of the thematic line researched and how ergonomics is linked to inclusiveness and stands out as one of the most defining components when designing an educational proposal based on SLE.La tecnología educativa se ve de forma continua transformada en función de las tecnologías innovadoras que vamos incorporando, pero siempre con la vista puesta en la mejora del proceso de enseñanza y aprendizaje. Para ello, los Smart Learning Environments (SLE) se convierten en una alternativa óptima a la enseñanza tradicional, puesto que a través de la ergonomía se brinda una perspectiva inclusiva que mejorará la experiencia educativa de cualquier estudiante. Por lo tanto, el principal objetivo de este trabajo consiste en realizar un análisis del estado del arte en relación con la ergonomía, la inclusión y los SLE. El método utilizado se basa en una revisión sistemática de literatura que nos ha permitido analizar en profundidad una muestra final de 19 documentos tras una revisión inicial de 633, habiendo sido todos los trabajos publicados entre 2013 y 2019. El análisis de los resultados se realiza a través de una red semántica generada con atlas.ti. v.8, a partir de la cual se extraen 3 categorías, 10 códigos y 33 citas. Principalmente, los resultados reflejan el carácter emergente de la línea temática investigada y cómo la ergonomía se relaciona con la inclusión y se posiciona como uno de los principales componentes para diseñar una propuesta educativa basada en los SLE

Phase angle and COVID-19: a systematic review with meta-analysis

Phase angle (PhA) has been identified as a poor prognostic factor in patients with COVID-19. This study aimed to achieve a systematic review, where we discussed the potential role of PhA value as a prognostic marker of adverse clinical outcomes such as mortality and complication in hospitalized with SARS-CoV2 infection and established the strength of recommendations for use. A systematic literature review with meta-analysis was done in the main electronic databases from 2020 to January 2023. The selected articles had to investigate adverse consequences of the COVID-19 population and raw bioimpedance parameters such as PhA and published in peer-reviewed journals. GRADE tools regarded the quality of the methodology. The review protocol was registered in PROSPERO. Only eight studies, 483 studies, were eligible for the analysis. In general, differences in PhA were seen between the comparative study groups. Patients with a low PhA experienced poor outcomes. A low PhA was associated with a significantly increased mortality risk [RR: 2.44; 95% CI (1.20–4.99), p = 0.01; I2 = 79% (p = 0.0008)] and higher complications risk [OR: 3.47, 95% CI (1.16 – 10.37), p = 0.03; I2 = 82% (p = 0.004)] in COVID-19 patients. Our analysis showed four evidence-based recommendations on the prognostic value of PhA with two strong recommendations, one of moderate and another of low-moderate quality, for predicting mortality and complications, respectively. We recommend using PhA as a prognostic marker for mortality and complications in this population. Although the results are promising, future studies must identify the PhA cut-off to guide therapeutic decisions more precisely.Funding for open access publishing: Universidad Málaga/CBUA. I.C.-P. was the recipient of a postdoctoral grant (Río Hortega CM 17/00169) and is now the recipient of a postdoctoral grant (Juan Rodes JR 19/00054) from the Instituto de Salud Carlos III and co-funded by Fondo Europeo de Desarrollo Regional-FEDER. Funding for open access charge: Universidad de Málaga / CBU

Delamination Study in Edge Trimming of Basalt Fiber Reinforced Plastics (BFRP)

[EN] Although there are many machining studies of carbon and glass fiber reinforced plastics, delamination and tool wear of basalt fiber reinforced plastics (BFRP) in edge trimming has not yet studied. This paper presents an end milling study of BFRP fabricated by resin transfer molding (RTM), to evaluate delamination types at the top layer of the machined edge with different cutting conditions (cutting speed, feed rate and depth of cut) and fiber volume fraction (40% and 60%). This work quantifies delamination types, using a parameter Sd/L, that evaluates the delamination area (Sd) and the length (L), taking into account tool position in the yarn and movement of yarns during RTM process, which show the random nature of delamination. Delamination was present in all materials with 60% of fiber volume. High values of tool wear did not permit to machine the material due to an excessive delamination. Type II delamination was the most usual delamination type and depth of cut has influence on this type of delamination.The authors gratefully acknowledge the funding by the Ministerio de Educacion y Ciencia of the Spanish government under grant DPI2013-44903-R-AR.Navarro-Mas, M.; García Manrique, JA.; Meseguer, MD.; Ordeig Fernández, IN.; Sánchez Galdón, AI. (2018). Delamination Study in Edge Trimming of Basalt Fiber Reinforced Plastics (BFRP). Materials. 11(8). doi:10.3390/ma1108141811

Stereoselective Synthesis of Nojirimycin α-C-Glycosides from a Bicyclic Acyliminium Intermediate: A Convenient Entry to N,C-Biantennary Glycomimetics

A simple and efficient method for the stereoselective synthesis of nojirimycin α-C-glycoside derivatives has been developed using a bicyclic carbamate-type sp2-iminosugar, whose preparation on a gram scale has been optimized, as the starting material. sp2-iminosugar O-glycosides or anomeric esters serve as excellent precursors of acyliminium cations, which can add nucleophiles, including C-nucleophiles. The stereochemical outcome of the reaction is governed by stereoelectronic effects, affording the target α-anomer with total stereoselectivity. Thus, the judicious combination of C-allylation, carbamate hydrolysis, cross-metathesis, and hydrogenation reactions provides a very convenient entry to iminosugar α-C-glycosides, which have been transformed into N,C-biantennary derivatives by reductive amination or thiourea-forming reactions. The thiourea adducts undergo intramolecular cyclization to bicyclic iminooxazolidine iminosugar α-C-glycosides upon acid treatment, broadening the opportunities for molecular diversity. A preliminary evaluation against a panel of commercial glycosidases validates the approach for finely tuning the inhibitory profile of glycomimetics.España MCIN/AEI/10.13039/ 501100011033Unión Europea ERDF A way of making Europe” (grant nos. PID2019-105858RB-I00 and RTI2018-097609-B-C21)Junta de Andalucía (Grant number P20_00166

Apresentação

Neste número, dedicado à Educação Pré-Escolar, continuação da Monografia n.º 71, abordamos diferentes trabalhos que a completam, relativamente a aspetos que não foram tratados na mesma por falta de espaço, e como consequência da grande aceitação que teve o tema da reunião entre investigadores e docentes. Não existe uma maneira única de olhar para a escola infantil. Na nossa perspetiva, concebemos a escola como centro de vida, brincadeira, comunicação e conhecimento, ou seja, como um espaço concebido e organizado para tornar possível uma existência agradável, com múltiplas e variadas experiências de relações e realizações pessoais. Abordámos aspetos teóricos e práticos em diferentes cenários do trabalho educativo na Educação Pré-Escolar, contribuindo assim para o desenvolvimento social, afetivo e cognitivo, em conjunto com o efeito compensador que tem para os contextos mais desfavorecidos